BMW F30 320d Horn Issue Due to Faulty Z Spiral – Seeking Support for Known Problem

I own a 2013 BMW F30 320d, which has been maintained solely by Borusan and has never been serviced outside of an authorized center. Recently, the horn stopped working, and when I consulted a service advisor, they diagnosed it as a “z spiral” issue—a known problem in many F30 models that requires rep...

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